SaturnFans.com
what's new (beta) - classifieds - forums - photos


Go Back   SaturnFans.com Forums > Models > Saturn S-Series > S-Series Tech
Register FAQ Members List Groups Calendar Chat Room Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Display Modes
Old 05-13-2014, 09:24 AM   #1
goatcheeser
New Member
goatcheeser is on a distinguished road
 
Join Date: May 2014
Posts: 7

1994 SL1
Default Help Needed

Greetings,

I own a 1994 Sl1 with a little over 75000 miles on it. Lately, I have been having problems with the car overheating when idling, and/or when I am stuck in stop and go traffic. I had someone tell me to replace the thermostat and am doing that today. However, the overheating is not my main concern. This is where it gets weird and I hope you are able to follow my explanation of the problem. Whenever the car would overhead, my check engine light would come on and the car would not shift out of first gear; it would just rev to about 4000+ revolutions per minute and then sputter when I took my foot off the accelerator. I have never had a problem fixing this. All I have to do is turn the car off and restart it. Not only does restarting the car remove the check engine light, but it also seems to fix the shifting problem. I thought the problem was directly related to the overheating, and it might be; however, someone suggested I could keep the temp. down by running the ac; this helped with the temp., but I still had the same check engine light and problem shifting after being stuck in traffic again. I did recently have a a leak in a spark-plug well. I changed the plug and the gasket but did not change the spark plug wire, also being fixed today. I recently had to change the top engine mount, but it took me a while to diagnose the problem so the engine was regularly shaken for a spell. Thank you in advance for your help.

-Goat

REWARD EXCELLENCE!

Add to goatcheeser's Reputation
Rate the quality of this post and help goatcheeser reputation points. Click the reputation button near the bottom left corner of this message box. Thank you!
goatcheeser is offline   Reply With Quote
SaturnFans.com Sponsored Links
Old 05-13-2014, 10:10 AM   #2
MadPuppy
Advanced Member
MadPuppy is on a distinguished road
 
MadPuppy's Avatar
 
Join Date: Jul 2009
Location: Chicago Area
Posts: 551
 

1998 SL2
Default Re: Help Needed

I think the coolant temp sensor helps control shifting in automatics, it may be that the overheat tripped the sensor and the sensor would not let the PCM get the trans out of 1st gear. I would consider fixing the overheat condition and/or replacing the coolant temp sensor.

...
National Debt is a loan, with nothing of serious value given by the lender in exchange for your time and labor, it's a loan we can't pay off, and the financial system as it is would end if we did.

REWARD EXCELLENCE!

Add to MadPuppy's Reputation
Rate the quality of this post and help MadPuppy reputation points. Click the reputation button near the bottom left corner of this message box. Thank you!
MadPuppy is offline   Reply With Quote
Old 05-13-2014, 10:34 AM   #3
el diablo viejo
Senior Member
el diablo viejo will become famous soon enough
 
el diablo viejo's Avatar
 
Join Date: Jan 2012
Location: New Hampshire
Posts: 1,419

1994 SW1
2000 SW2
Default Re: Help Needed

You have two sensors, one for the gauge with a single wire connector, and one for the pcm with a two wire connector, which is the one you want to change. They are both on the the driver's side of the head, just take off the intake air tube to gain access. This is always a good place start. You should also read any stored OBD1 codes and post them here.
Have you read this http://www.saturnfans.com/forums/sho...d.php?t=177672 ?

...
97 sl2 a/t 104 K
1989 GMC 3500 454 129 K, 1969 442 455 rat rod

REWARD EXCELLENCE!

Add to el diablo viejo's Reputation
Rate the quality of this post and help el diablo viejo reputation points. Click the reputation button near the bottom left corner of this message box. Thank you!
el diablo viejo is offline   Reply With Quote
Old 05-13-2014, 12:25 PM   #4
fdryer
Super Member
fdryer has a reputation beyond reputefdryer has a reputation beyond reputefdryer has a reputation beyond reputefdryer has a reputation beyond reputefdryer has a reputation beyond reputefdryer has a reputation beyond reputefdryer has a reputation beyond reputefdryer has a reputation beyond reputefdryer has a reputation beyond reputefdryer has a reputation beyond reputefdryer has a reputation beyond repute
 
fdryer's Avatar
 
Join Date: Jan 2006
Location: NYC
Posts: 41,023
 

2003 L-Series 3.0L Sedan
Default Re: Help Needed

Replace the original two-wire coolant sensor. This sensor indirectly causes xmission shift issues when the engine computer is given incorrect coolant temperature signals. Replacing the faulty sensor will correct the overheating problem.
Attached Images
File Type: gif plastic cts.gif (46.3 KB, 5 views)
File Type: gif brass cts.gif (43.8 KB, 4 views)

REWARD EXCELLENCE!

Add to fdryer's Reputation
Rate the quality of this post and help fdryer reputation points. Click the reputation button near the bottom left corner of this message box. Thank you!
fdryer is offline   Reply With Quote
Old 05-14-2014, 11:21 AM   #5
goatcheeser
New Member
goatcheeser is on a distinguished road
 
Join Date: May 2014
Posts: 7

1994 SL1
Default Re: Help Needed

UPDATE:

I want to start by thanking you all for your help. I decided to put off replacing the thermostat. Many of you have suggested changing the cooling sensor. Replacing the sensor seems like an easier fix than draining my coolant system to replace the thermostat. Yesterday, I was given the wrong sensor and am now waiting for my car to cool down before attempting to replace the old sensor with the correct part. I am a bit concerned because I did remove the old sensor to see if there was any noticeable damage, there wasn't. This is slowly becoming a cluster and am starting to fear that I may just have to bite the bullet and take it to a professional. I will be sure to update once the new sensor is in. Thanks again.

-Goat

REWARD EXCELLENCE!

Add to goatcheeser's Reputation
Rate the quality of this post and help goatcheeser reputation points. Click the reputation button near the bottom left corner of this message box. Thank you!
goatcheeser is offline   Reply With Quote
Old 05-14-2014, 11:59 AM   #6
alordofchaos
Super Member
alordofchaos has much to be proud ofalordofchaos has much to be proud ofalordofchaos has much to be proud ofalordofchaos has much to be proud ofalordofchaos has much to be proud ofalordofchaos has much to be proud ofalordofchaos has much to be proud ofalordofchaos has much to be proud ofalordofchaos has much to be proud of
 
alordofchaos's Avatar
 
Join Date: Jan 2009
Location: Central MI
Posts: 11,820
 

2002 SC2
1998 SL2
Default Re: Help Needed

Was the tip on the sensor you pulled out flat, or rounded?

When you turn the AC on, the engine fan should come on full speed. Does it do that?

...
I'm not worthy to grovel in the shadow of Signmaster's wisdom

11/2016 red 2002 5 spd SC2 124k DD
7/2010 Craigslist white 1997 SC2 project
12/2008 eBay silver 1998 SL2 5 spd 102k, now 201k+ miles

REWARD EXCELLENCE!

Add to alordofchaos's Reputation
Rate the quality of this post and help alordofchaos reputation points. Click the reputation button near the bottom left corner of this message box. Thank you!
alordofchaos is offline   Reply With Quote
Old 05-14-2014, 12:08 PM   #7
goatcheeser
New Member
goatcheeser is on a distinguished road
 
Join Date: May 2014
Posts: 7

1994 SL1
Default Re: Help Needed

It is rounded and yes, when I turn the ac on the fan does come on.

Last edited by goatcheeser; 05-14-2014 at 12:15 PM.. Reason: misinformation

REWARD EXCELLENCE!

Add to goatcheeser's Reputation
Rate the quality of this post and help goatcheeser reputation points. Click the reputation button near the bottom left corner of this message box. Thank you!
goatcheeser is offline   Reply With Quote
Old 05-14-2014, 03:32 PM   #8
screwpid
Junior Member
screwpid is on a distinguished road
 
Join Date: Apr 2014
Location: Midwest
Posts: 30

1993 SL2
Default Re: Help Needed

Quote:
Originally Posted by goatcheeser View Post
It is rounded and yes, when I turn the ac on the fan does come on.
Sounds like you need to upgrade that sensor to the copper one thats flat. That sounds like the oem temp sensor. You should have changed that last year! Paperclip your car and post the code you are getting.

REWARD EXCELLENCE!

Add to screwpid's Reputation
Rate the quality of this post and help screwpid reputation points. Click the reputation button near the bottom left corner of this message box. Thank you!
screwpid is offline   Reply With Quote
Old 05-14-2014, 04:14 PM   #9
Sc86gt
Junior Member
Sc86gt is on a distinguished road
 
Join Date: May 2014
Posts: 21
Default Re: Help Needed

.....

REWARD EXCELLENCE!

Add to Sc86gt's Reputation
Rate the quality of this post and help Sc86gt reputation points. Click the reputation button near the bottom left corner of this message box. Thank you!
Sc86gt is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Help needed! AstraLover Astra General 10 12-17-2012 11:08 PM
Help Needed SL2confusion S-Series Tech 2 04-10-2011 04:45 PM
little help needed new S owner S-Series Tech 6 01-20-2008 12:44 AM
A/C help needed tfbthg S-Series Tech 42 07-28-2007 11:19 AM
95 - SOHC Heads needed...or help needed hamill S-Series Tech 15 10-31-2005 10:48 PM


All times are GMT -5. The time now is 08:43 PM.

Advanced Forum Search | Advanced Photo Search


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
SaturnFans.com. The Saturn Enthusiasts Site.